Cotton-ginning machinery.



No. 894,605 y PATBNTED JULY 28, 190s.

J. B. lCRNWALL. i COTTON GINNING MACHINERY.- APP'LIOATION FILED AUG. 26.1907.

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50 view of the beater wheel. Fig. 8 is a trans- UNITED STATES PATENT OFFICE.

*E JOHN LB. CORNWALL, OF "MOLINE, ILLINOIS, ASSIGNOR TO BARNARD AND LEAS MANUFACTURING COMPANY, OF MOLINE, ILLINOIS. COTTON-GINNING MACHINERY.

No. 894,605. Specification of Letters Patent. Patented July 28, 1908. Application led August 26, 1907. Serial No. 390,202. To all whom it may concern: the hopper through a contracted nozzle or out- Moline, 1n the county of Rock Island and table beater Wheel 2a mounted on a shaft 2c State of Illinois, have invented certain new andprovided with projections or pins 2b which 5 and useful Improvements in Cotton-Ginning are adapted to strike the material issuing 60 Machinery; and I hereby declare that the from the nozzle lb and separate it thoroughly following is a full, clear, and exact ,descripand discharge it into the suction trunk 2. tion thereof, reference being had to the ac- The feeder disk or beater wheel as shown companying drawings, which form part of in Fig. 7 is of such diameter that the row of 10 this speciiication. teeth 2X around its outer portion ractically 65 his invention is an improvement in cotoverlap the discharge opening of) the nozton ginning machinery, and is particularly I zle 1b. designed for cleaning the boll hulls dis- I The shaft 2c may be driven from the concharged from the usual ginning machines. veyer shaft 1 by gears le, 2e, as shown.

The invention provides a machine for e conveyer being driven by any suitable cleaning the boll hulls that have not fully means-or as shown, by a sprocket chain lg opened when the cotton is gathered, and are engaging sprockets lf on the conveyer shaft, thrown out by the gin inthe first ginning of and a larger sprocket 5b on the shaft 5a of the cotton, and which hulls contain a conthe cleaner wheel 5 hereafter described.

siderable amount of cotton adhering thereto- The suction trunk 2 connects with the 75 so closely as not to be removed by the ordiinlet of a fan chamber 3 within which is a fan nary ginning machines. 3a mounted on shaft 3b and driven in any The invention may be embodied for eX- suitable mannen-or as shown by means of ample in the machine illustrated in the aca belt Sdrunningover a pulley 3c on the fan companying drawings, which machine is deshaft, and over a pulley 7b on the main or 80 signed to catch the bunches of cotton which drive shaft 7 hereinafter explained. contain the seed and to reject the boll hulls The outletof the fan casing connects with which have been separated from the cotton an air blast passage or trunk 4 which extends by the action of the feeder and fan, the hulls overV and aroundsay one-half the circumbeing blown out at-the'opposite end of the ference of the cleaner wheel 5, which wheel 85 machine from the feeder and the cotton disis of large diameter, and is mounted upon a .charged at another point. y shaft 5Et journaled in bearings in the main will now explain the structure and opera- `frame of the machine. tion of the machine illustrated in the accorn- The trunk 4 terminates below the center panying drawings,but the invention is not of the cleaner wheel, at the end opposite thel 90 restricted to the particular structure shown, fan chamber, and discharges the hu ls at that theessential features and combinations of end of the machine, away from the separated parts for which rotection is desired being set forth .in the claims attached to the speci- 4o cation. i

In said drawings-Figurel is an elevation of the feed side of the complete machine. Fig. 2 is a view of the opposite side thereof, partly in section. Fig. 3 is a top plan view with parts broken away to show the interior construction. Figs. 4 and 5 are detail sectional views of the cleaning wheel. Fig. 6 is a detail view of a modified construction of cleaner wheel surface. Fig. 7 is a detail Be it known that I, JOHN B wOoRNwALL, of l let 1b, into a suction trunk2 in which is a rota- The part of trunk 4 concentricto the wheel of said wheel (see Fig. 2) but its sides and outer periphery are tightly closed and the side walls of the air trunk are fitted sufficiently closely to the wheel to revent any material diminution in force of t e air blast 100 through said trunk.

he concentric part of trunk 4 is provided with a series of hollow protuberances 4a forming internal pockets which gradually y verse section on line 8-8, Fig. 1.

hopper l has a conveyer' 1a in `its bottom, the shaft of whichis journaled only-at one end, the inner end of the conveyer being free and adapted to discharge material from outlet ends, the walls 4b at the outlet ends of the pockets being curved more abruptly inward so as to direct the material blown through the trunk and pockets inwardly 5, has its inner wall formed by the periphery enlarge from their inlet ends toward their vagainst the oppositely moving peripheral i 1s driven by a belt 6c The boll-hulls (or into the nozzle lb.

surface of the cleaner wheel-5, as indicated in Fig. 2.

The cleaner wheel may be of any desired construction having a wooden rim or periphery. 4ln the structure shown in Figs. l, 4 and 5, said wheel has a wooden peri hery, and is provided with circumferential y disosed rows of teeth 50, which may be formed in any suitable manner; as shown, for example they are formed of L-shaped tacks, the shanks of which are driven radially into the rim of the wheel, and the points thereof lie arallel with the surface of the wheel and extend in the direction of rotation thereof7 (which is toward the fan.) ln order to prevent the boll hulls engaging two of the teeth simultaneously and thus be carried around with the cotton, the teeth are arranged be tween annular ribs on the periphery of the wheel, which ribs can be formed in various ways. Fig. 4 shows how the ribs prevent the hulls engaging more than one hook at a time.

As shown in Figs. 4 and 5 the annular ribs are formed by wire hoops or rings 5f secured around the circumference of the wheel between the rows of teeth. As shown in Fig. 6 the periphery of the wheel may be covered with a corrugated sheet of metal 5d which would answer the same purpose. Obviously the ribs may be formed in other ways.

The cleaner wheel is rotated toward the fan by suitable means. As shown a sprocket chain 5h runs over a sprocket 5i on shaft 5, and over a sprocket 7 on the drive shaft 7.

At the lower side of the cleaner wheel and adjacent the fan, is a rotary brush 6 mounted on a shaft 6a and driven at a high speed in a direction opposite to the cleaner wheel (so th at the peripheries of the cleaner wheel and brush move in the same direction at the oint of impingement). As shown the brush running over pulley 6b on the brush shaft, and over a pulley 7 C on the main shaft. The belt 6C being crossed so as to rotate the brush oppositely to the cleaner wheel7 and at such speed that the brush will pick the cotton off the teeth and discharge it under the cleaner wheel, as indicated in the drawings.

The main shaft 7 is journaled on the end of the main frame opposite the fan chamber and may be driven in any suitable manner, as by a power-driven belt running over a pulley 7a on the main shaft.

The operation of the machine is as follows: grabbot) are fed into conveyed by conveyer 1a The mass of cotton compressed into the nozzle is separated and thrown in a shower into the suction trunk 2 which leads to the fan, by the beater wheel, 0r toothed disk 2a-which makes an even and open feed of the hulls to the machine, which hulls would otherwise pass into the the hopper l and machine in masses. The hulls then pass into the fan casing and the fan beats the hulls loose from the cotton and discharges the material into the air trunk 4. Owing to the peculiar form of the pockets 4 of this trunk the material is caused to repeatedly impinge against the toothed cleaner wheel. ln this way the loosened bunches of cotton on the hulls are engaged by the teeth on the cleaner wheel and are conveyed against the direction of the air blast7 while the hulls are not able to engage the teeth on account of the peculiar form of the surface of the cleaner wheel and are driven through the trunk and out at the rear end thereof.

Some of the peculiar advantages of the machine are having the mass of hulls el'- fectively broken up and separated by the beater wheel and the fan before it encounters the cleaning wheel. Also using a blast of air of sufficient strength to carry away the small impurities from the cotton and to liberate hulls entangled in the cotton.. Also the arrangement whereby the material passing through the trunk are repeatedly directed against the periphery of the cleaner wheel; also the structure of the cleaner wheel whereby the teeth are located between ridges or guards which prevent hulls catching on two adjacent teeth.

Having described my invention what l, claim as new and desire to secure by Letters Patent is:

l. ln a machine for separating cotton from boll hulls, the combination of a cleaner wheel, an air trunk partlysurrounding the periphery of said wheel, and having its inner wall formed by the periphery of said wheel, and having its outer wall formed with a series oi hollow protuberances forming internal pockets whose outlet end walls are curved inwardly so as to direct the hulls passing through the pockets inwardly against the periphery of the wheel.

2. In a machine for separating cotton from boll hulls, the combination of a cleaner wheel, an air trunk partly surrounding the periphery of said wheel7 and having its outer wall formed with a series of hollow protuberances forminginternal pockets whose outlet end walls are curved inwardly so as to direct the hulls passing through the pockets inwardly against the periphery of the wheel; with a fan chamber, and fan for blowing the hulls through the said trunk and pockets in a direction opposite the rotation of the wheel.

3. ln a grabbot cleaning machine, the combination of a hopper having a contracted outlet, a conveyer for discharging grabbot from said hopper, a suction trunk communicating with the outlet of the hopper, a fan chamber into which the suction trunk discharges, a rotary beater wheel in said suction trunk adapted to strike and separate the material entering said trunk, with means from the ho for separating the cotton from the hulls discharged frorn the fan casing, substantially as described.

4. In a grabbot cleaning machine, the combination of a hopper having acontracted outlet, a conveyer for discharging grabbot from said hopper, a suction trunk communicatin cham er into which the suction trunk discharlges, a rotary beater Wheel in said suction trun adapted to'strike and separate the Inaterial entering said trunk; With a cleaner Wheel having a toothed periphery, an air blast trunk into which the hulls are driven by the fan, said trunk partly surrounding said cleaner Wheel and having surfaces adapted to direct the hulls repeatedly against the surface of the cleaner Wheel.

5. In a grabbot cleaning machine, the combination of a toothed cleaner Wheel, an air trunk partly surrounding said Wheel and having its inner Wall partly formed by the periphery of said Wheel and its outer Wall formed With pockets, a fancasing and fan for creating an air current through said trunk in a direction contrary to the rotation of the Wheel, a hopper having a contracted outlet, a conveyer for discharging 4material per through said outlet, a suction trunk 'or directing material from the outlet into the said fan casing, and a beater Wheel in said suction trunk adapted to disseminate the hulls before entering the fan casin 6. In a grabbot cleaning machine, the combination of a feed ho per having a contracted outlet, means or ejecting material through said outlet, a trunk into which the material is discharged, a beater Wheel in said trunk adapted to disseminate the entering grabbot, a fan chamber communicating With the outlet of said trunk, a fan in said casing adapted to further disseminate the material, a curved air blast trunk communicating with With the outlet of the-hopper, a fan adapted to eject material through said outlet, a suction trunk into which the material is ischarged, a beater Wheel in said trunk ada ted to disseminate the grabbot entering saidp suction trunk; a fan chamber communieating With the outlet of said suction trunk,

and a fan in said casing adapted to further disseminate the materlal; with a toothed cleaner Wheel, a curved air blast trunk communicating with the outletof the fan-chamber, and partly surrounding said cleaner Wheel, the latter forming the inner Wall of art of said air-blast trunk, said air trunk -iieing provided with pockets having inclined end Walls adapted to direct material against the eriphery of 'the Wheel, and a rotary brush) for removing cotton from said cleaner wheel, substantially as described.

cleaner Wheel for the purpose specilied having circumferential bands of Wire secured'around its eriphery, and circumferential series of teeiih driven into the Wheel in the spaces between the bands, substantially as described.

9. A cleaner Wheel for the purpose specified, having a Wooden rim, circumferential rows of separate teeth driven into its periphery, and circumferential metallic bands secured around itsperiphery intermediate the rows of teeth, for the purpose specified.

In testimony that I claim the foregoing as my own, I aix my signature in presence of tWo Witnesses.

, JOHN B. CORNWALL. Witnesses:

ABRAM H. JOSEPH, M. L. EKDAHL. 

